/Engine/Source/Runtime/Engine/Classes/Animation/AnimCompress_RemoveLinearKeys.h
Converts an absolute animation sequence and matching track data to a relative (additive) one.
void ConvertToRelativeSpaceBoth ( [FCompressibleAnimData](API\Runtime\Engine\Animation\FCompressibleAnimData) & CompressibleAnimData, [TArray](API\Runtime\Core\Containers\TArray)< [FTranslationTrack](API\Runtime\Engine\Animation\FTranslationTrack) > & TranslationData, [TArray](API\Runtime\Core\Containers\TArray)< [FRotationTrack](API\Runtime\Engine\Animation\FRotationTrack) > & RotationData, [TArray](API\Runtime\Core\Containers\TArray)< [FScaleTrack](API\Runtime\Engine\Animation\FScaleTrack) > & ScaleData )